A kind of nano color paste dispersant for paper and its preparation method and application

A nano-color paste and dispersant technology, applied in the direction of paper, pigment paste, pigment/opacifier addition, etc., can solve the problems of no reports, etc., and achieve easy color fixation, strong light fastness, and easy combination with fibers Effect

Active Publication Date: 2019-08-06
FENGKAI JIACHENG PAPER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report on the technical literature on the preparation of nano-color paste for paper and papermaking coloring

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Each of the following material components is measured in parts by mass.

[0057] (1) After mixing 100 parts of water and 2 parts of sodium dodecylsulfonate, adjust the pH to 8-9 with ammonia water; then add 3 parts of styrene monomer, 1 part of butyl acrylate, 10 parts of methacrylic acid and 10 parts of acrylamide After emulsifying at a speed of 100rpm for 15 minutes, it was in a homogeneous state; the temperature was raised to 75°C, and 2 parts of ammonium persulfate (made into a 10% (w / w) aqueous solution, i.e. 20 parts) was added dropwise, reacted for 3 hours, and then added Stabilizer (polyvinyl alcohol 1799) 2 parts, mixed to obtain a dispersant. Adjust the dispersant concentration to 40% with water.

[0058] (2) Dispersion of toner: First, 200 parts of water, 8 parts of dispersant with a concentration of 40%, 60 parts of toner (Clariant blue toner, C.I.15:3 blue), grind and disperse until the particle size D50 of the color paste is in the range of 200 -500 nano...

Embodiment 2

[0064] Each of the following material components is measured in parts by mass.

[0065] (1) After mixing 50 parts of water and 2 parts of sodium dodecyl sulfonate, adjust the pH to 8-9 with sodium hydroxide solution; then add 3 parts of styrene monomer, 1 part of butyl acrylate, 10 parts of acrylic acid, and acrylamide 5 parts and 5 parts of maleic anhydride, after emulsification at 200rpm for 15 minutes, it was in a homogeneous state; the temperature was raised to 70°C, and 2 parts of ammonium persulfate was added dropwise (to make a 10% (w / w) aqueous solution, i.e. 20 parts) , reacted for 2.5 hours, then added 2 parts of stabilizer (commercially available sodium carboxymethylcellulose, Guangzhou Daojun Biotechnology Co., Ltd.), and mixed to obtain a dispersant. Adjust the dispersant concentration to 40% with water.

[0066] (2) Dispersion of toner: First, 200 parts of water, 12 parts of dispersant with a concentration of 40%, and 70 parts of toner (BASF blue toner (C.I.60 b...

Embodiment 3

[0072] Each of the following material components is measured in parts by mass.

[0073] (1) After mixing 150 parts of water and 2 parts of sodium dodecylsulfonate, adjust the pH to 8-9 with ammonia water; then add 3 parts of styrene monomer, 1 part of butyl acrylate, 10 parts of methacrylic acid, and 5 parts of acrylamide and 5 parts of hydroxypropyl acrylate, after emulsification at 150rpm for 15 minutes, it was in a homogeneous state; the temperature was raised to 80°C, and 2 parts of ammonium persulfate was added dropwise (to make a 10% (w / w) aqueous solution, i.e. 20 parts) , reacted for 2 hours, then added 2 parts of stabilizer (polyvinyl alcohol 1799), and mixed to obtain a dispersant. Adjust the dispersant concentration to 40% with water.

[0074] (2) Dispersion of toner: First, 200 parts of water, 10 parts of dispersant with a concentration of 40%, and 63 parts of toner (BASF blue toner (C.I.60 blue)) are ground and dispersed until the particle size D50 of the color p...

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PUM

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Abstract

The invention discloses a nano color paste dispersant for paper, a preparation method and application thereof. In the present invention, the emulsion is obtained by mixing the water and the emulsifier, and then adjusting the pH value to 8-9; then adding the hydrophobic monomer and the hydrophilic monomer, emulsifying to a uniform state, adding the initiator aqueous solution after heating up The reaction is carried out; a stabilizer is added to obtain a dispersant, and a nano-color paste dispersant for paper is obtained. The dispersant has a good dispersing effect, which is beneficial to disperse the toner and make it more stable; the color paste containing the dispersant is easy to fix, and is easy to combine with fibers and adhere firmly when used in the papermaking process. The color paper obtained by using the color paste provided by the invention has extremely strong light fastness up to grade 6, and the color is bright and durable.

Description

technical field [0001] The invention belongs to the field of fine chemical new materials, and in particular relates to a nano-color paste dispersant for paper and its preparation method and application. Background technique [0002] Colored paper is a colored paper product. The dye is soluble in water and has a natural affinity with the fiber. It can be adsorbed on the surface and inside of the fiber. It is easy to color and the dyeing effect is obvious. Therefore, it is widely used in the papermaking process. Dye dyed paper has low color fastness, easy to fade, not durable, and the grade of colored paper is low. The advantage of organic pigments over dyes is that they have strong light fastness and bright and long-lasting colors. They are favored varieties of high-grade colored paper. However, organic pigments are insoluble in water, cannot be directly combined with fibers, and are difficult to color. The excellent color brilliance and durability of water-based colorants ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/06C08F220/56C08F212/08C08F220/18C08F222/08C08F220/28C08F2/26C09D17/00D21H21/28
CPCC09D17/003D21H21/28C08F2/26C08F220/06C08F220/56C08F212/08C08F220/1804C08F222/08C08F220/281
Inventor 颜进华黄丁源
Owner FENGKAI JIACHENG PAPER CO LTD
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